It can be a really good sign when a love interest invites you to enjoy some fun in the sun with his family. The invitation can also be a big cause for panic. There is a lot of preparation involved in attending a family pool party or beach trip. You suddenly have the pressure of getting a pedicure, shaving your legs, and making sure you own a swimsuit that won't cause a scandal. That frilly bikini or tantalizing thong you love to wear when you're at the beach with your man won't quite cut it...